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mac80211: track and tell driver about GO client P2P PS abilities

Browse source 
Legacy clients don't support P2P power save mechanism, and thus if a P2P GO
has a legacy client connected to it, it should disable P2P PS mechanisms.
Let the driver know about this with a new bss_conf parameter.

Signed-off-by: Ayala Beker <[email protected]>
Signed-off-by: Emmanuel Grumbach <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
This commit is contained in:
Ayala Beker 2016-03-17 15:41:39 +02:00 • committed by Johannes Berg
commit 52cfa1d614
3 changed files with 40 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

4
net/mac80211/cfg.c
View file

@ -732,6 +732,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
sdata->vif.bss_conf.beacon_int = params->beacon_interval;
sdata->vif.bss_conf.dtim_period = params->dtim_period;
sdata->vif.bss_conf.enable_beacon = true;
sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
sdata->vif.bss_conf.ssid_len = params->ssid_len;
if (params->ssid_len)
@ -1202,6 +1203,9 @@ static int sta_apply_parameters(struct ieee80211_local *local,
params->opmode_notif, band);
}
if (params->support_p2p_ps >= 0)
sta->sta.support_p2p_ps = params->support_p2p_ps;
if (ieee80211_vif_is_mesh(&sdata->vif))
sta_apply_mesh_params(local, sta, params);

29
net/mac80211/sta_info.c
View file

@ -1767,6 +1767,31 @@ void ieee80211_sta_set_buffered(struct ieee80211_sta *pubsta,
}
EXPORT_SYMBOL(ieee80211_sta_set_buffered);
static void
ieee80211_recalc_p2p_go_ps_allowed(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
bool allow_p2p_go_ps = sdata->vif.p2p;
struct sta_info *sta;
rcu_read_lock();
list_for_each_entry_rcu(sta, &local->sta_list, list) {
if (sdata != sta->sdata ||
!test_sta_flag(sta, WLAN_STA_ASSOC))
continue;
if (!sta->sta.support_p2p_ps) {
allow_p2p_go_ps = false;
break;
}
}
rcu_read_unlock();
if (allow_p2p_go_ps != sdata->vif.bss_conf.allow_p2p_go_ps) {
sdata->vif.bss_conf.allow_p2p_go_ps = allow_p2p_go_ps;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_P2P_PS);
}
}
int sta_info_move_state(struct sta_info *sta,
enum ieee80211_sta_state new_state)
{
@ -1828,12 +1853,16 @@ int sta_info_move_state(struct sta_info *sta,
} else if (sta->sta_state == IEEE80211_STA_ASSOC) {
clear_bit(WLAN_STA_ASSOC, &sta->_flags);
ieee80211_recalc_min_chandef(sta->sdata);
if (!sta->sta.support_p2p_ps)
ieee80211_recalc_p2p_go_ps_allowed(sta->sdata);
}
break;
case IEEE80211_STA_ASSOC:
if (sta->sta_state == IEEE80211_STA_AUTH) {
set_bit(WLAN_STA_ASSOC, &sta->_flags);
ieee80211_recalc_min_chandef(sta->sdata);
if (!sta->sta.support_p2p_ps)
ieee80211_recalc_p2p_go_ps_allowed(sta->sdata);
} else if (sta->sta_state == IEEE80211_STA_AUTHORIZED) {
if (sta->sdata->vif.type == NL80211_IFTYPE_AP ||
(sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&